Entendendo a física por trás do futebol: o chute de Roberto Carlos que desafiou as Leis da Física

Abstract

The objective of this work is to approach the concepts of kinematics using the most popular sport in the country, football. Where at twenty-one minutes of the first half, the Brazilian team scored its first goal in the game France versus Brazil. The player Roberto Carlos is selected for the free-kick, distances himself from the ball, starts running like a 100-meter sprinter and kicks the ball, which is made a spectacular curve, hits the bar and enters the goal. From this free kick, the movement can be physically analyzed and divided into two parts: i) the player's movement before kicking the ball; and ii) the movement of the ball in the air. So, the question arises: how was the movement of the player Roberto Carlos until he kicked the ball and how can we describe his movement towards the ball? In this article, the description of the movement made by the player, the referential, displacement and the concept of time interval were discussed. We also analyzed concepts of speed, average speed, instantaneous speed and application of the concepts, which we found the Position Equation. Finally, we analyze the concepts of acceleration, average acceleration, instantaneous acceleration, the Velocity Equation and Position Hourly Equation. The methodology used in this work was the bibliographic research, where through research in articles, texts and videos taken from the internet we obtained the results found, from the analysis of the texts in question, each movement of the player Roberto Carlos was worked on punctually, and each move made by him, so we have all the calculations made on top of each displacement he performed during the kick. The main objective of choosing the concepts of kinematics to work with in this article is in search of teaching and learning for students, the search for new ways of teaching physics to students, so that in this way we obtain an educational evolution, so that the student can see physics in their daily lives, to start asking new questions, thus encouraging them to want to learn more about teaching in a didactic and playful way, which will make it much easier in the future.